da40cac540
Change-Id: I1ab4e23b0539f8d39974787f226e57a21f96e959 Reviewed-on: https://gerrit.libreoffice.org/12164 Reviewed-by: Noel Grandin <noelgrandin@gmail.com> Tested-by: Noel Grandin <noelgrandin@gmail.com>
65 lines
2.1 KiB
C++
65 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#ifndef INCLUDED_CANVAS_SOURCE_OPENGL_OGL_TEXTURECACHE_HXX
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#define INCLUDED_CANVAS_SOURCE_OPENGL_OGL_TEXTURECACHE_HXX
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#include <sal/types.h>
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#include <boost/unordered_map.hpp>
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namespace com { namespace sun { namespace star {
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namespace geometry { struct IntegerSize2D; }
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}}}
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namespace oglcanvas
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{
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class TextureCache
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{
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public:
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TextureCache();
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~TextureCache();
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/// clear whole cache, reset statistic counters
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void flush();
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/** prune old entries from cache
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Every time this method is called, all cache entries are set
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to "old". If subsequently not used by getTexture(),
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they'll be entitled for expunge on the next prune()
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call. Resets statistic counters.
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*/
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void prune();
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/// Statistics
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size_t getCacheSize() const { return maCache.size(); };
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sal_uInt32 getCacheMissCount() const { return mnMissCount; }
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sal_uInt32 getCacheHitCount() const { return mnHitCount; }
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unsigned int getTexture( const ::com::sun::star::geometry::IntegerSize2D& rPixelSize,
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const sal_Int8* pPixel,
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sal_uInt32 nPixelCrc32) const;
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private:
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struct CacheEntry
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{
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CacheEntry() : nTexture(0), bOld(false) {}
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unsigned int nTexture;
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bool bOld;
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};
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typedef boost::unordered_map<sal_uInt32,CacheEntry> TextureCacheMapT;
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mutable TextureCacheMapT maCache;
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mutable sal_uInt32 mnMissCount;
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mutable sal_uInt32 mnHitCount;
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};
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}
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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